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MICROFRAME 386CX

MONOLITHIC SYSTEMS, INC. (COLORADO MSI)

MICROFRAME 386CX

   

Processor

80386DX

Processor Speed

20/25MHz

Chip Set

C & T

Max. Onboard DRAM

8MB

Cache

32KB

BIOS

AMI/Phoenix

Dimensions

349.2mm x 330.2mm

I/O Options

32-bit external memory cards (4), serial ports (2), parallel port

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Auxiliary keyboard

J8

Disk access LED

J2

Serial port 2

J10

No charge (key)

J6 pin 1

Parallel port

J11

Ready

J6 pin 2

Serial port 1

J12

Keylock

J6 pin 3

Reset switch

J13

Turbo

J6 pin 4

CPU ready LED

J14

No charge

J6 pin 5

Turbo LED

J15

Disk access

J6 pin 6

Speaker

J34

Reset

J6 pin 7

32-bit external memory card

S1

Ground

J6 pin 8

32-bit external memory card

S2

Speaker

J6 pin 9

32-bit external memory card

S3

+5VDC

J6 pin 10

32-bit external memory card

S4

Power LED & keylock

J7

   

Note:J2 is used only when a disk access signal is connected to J6 pin 6.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

J16

pins 2 & 3 closed

 

Monitor type select monochrome

J16

pins 1 & 2 closed

Factory configured - do not alter

J17

N/A

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NPU CONFIGURATION

Setting

J22

J23

Disabled

pins 1 & 2 closed

pins 1 & 2 closed

Enabled

pins 2 & 3 closed

pins 2 & 3 closed